A support structure carries a thrust load of a transmission which includes
a torque converter having an impeller and a turbine opposite to each
other with a stator therebetween. A thrust needle roller bearing having
needle rollers arranged in two rows is provided at, at least one of
places respectively between the stator and the impeller and between the
stator and the turbine. The support structure carrying a thrust load of
the transmission, a method of manufacturing the support structure and the
thrust needle roller bearing are thus obtained, with an improvement in
inflow and outflow of a lubricating oil, a reduction of the differential
slip of the needle rollers, and an improvement in strength durability.